We can mainly supply three series catalyst as below, which are equivalent to overseas brands BASF-O4-110/O4-111, TOPSOE--VK38/48/59/69 and MECS-LP/XLP-120&110. Type S101(04-110/VK38/LP-110) There are four products of type S101, in details, they are S101 (Cylinder); S101-H (Ring); S101-MH (Star ring); S101-YH (Three-Ribs Cylinder). Type S101 Catalyst is a medium broad temperature vanadium catalyst which promotes the oxidation from SO2 to SO3, and it is developed by China. With 20 years of manufacturing S101 catalyst, it has reached the international advanced level. Due to its high-quality and steady performance, The advantages of S101 are as listed. Wide applicability, broad range of temperature, high conversion, and high mechanical strength etc. Ring or plum blossom shaped catalysts have solved some problems that cylinder shaped catalyst encountered; namely, they are small pellets, high pressure drop and high energy consumption, bad resistance of dust accumulation. Type S101 series are broad temperature catalysts which suit for every bed of converter. 2.Type S108: S108 Cylinder; S108-H (Ring); S108-MH (Star ring); S108-YH (Three-Rib Cylinder) (O4-111/VK48/LP-120) Type S108 Series sulfuric acid catalysts are invented in early 80s�¢?? by China. The advantages of them are outstanding. In general, they are low ignition temperature, high activity in low temperature, high-resistant crushed strength etc. If can be used together with medium temperature type catalyst, such as, S101, you can make more profits; for instance, high conversion, and lowering environmental pollution. Type S108 is low temperature catalysts which suit for 1/3 top of the first bed to decrease inlet operating temperature, and 4th bed, 5th bed to improve equilibrium conversion and decrease gas emission. 3.LS112 Type Cesium Catalyst(VK59/69/Cs120/110) Low ignition temperature; higher activity in low temperature; high-resistant crushed strength, high anti- poison; high anti- pulverization etc. LS112 cesium-promoted catalyst integrates not only the active constituent of vanadium pentoxide and the promoters of cesium and potassium salts, but also the carrier of select diatomaceous earth. Its activity under low and high temperature conditions keeps high due to the unique manufacturing process and optimized formulation. Cesium-promoted catalyst enables new opportunities for improvement in start-up time, energy efficiency of electricity throughout the operating cycle and strong reduction in SO2 emission that far lower than national standard. The product is the all-around catalyst suited for all stages in converter due to its low ignition temperature and good heat tolerance under high temperature condition. Cs series enables the compliance with pollutant emission standards due to its enhanced activity and longer service life.